Infection customization options

Ok i didnt notice this until just now but in custom games for infection you have some limitations to what you can do for each side.
For example; you can’t set it to where if the alpha dies the survivors win.
The reason I’m talking about that specifically is because I want to make a cops and robbers game mode but the only problem is that when the cop dies the game continues and it doesn’t go to a new round. Also the alpha is limited on what they can pick up.
If I’m stupid and don’t see this option please tell me but currently I do not see it and I cannot make this cops and robbers game mode until the lives thing is added and pick up everything.